diff --git a/nbproject/project.xml b/nbproject/project.xml
index 7c5baf9e3aec23e360c3ad8429474fa5af624eaf..a3f00009a2ad6af3573af176641f5f477cae3d23 100644
--- a/nbproject/project.xml
+++ b/nbproject/project.xml
@@ -90,7 +90,7 @@
         <java-data xmlns="http://www.netbeans.org/ns/freeform-project-java/4">
             <compilation-unit>
                 <package-root>lib</package-root>
-                <classpath mode="compile">lib/X3DJSAIL.3.3.full.jar</classpath>
+                <classpath mode="compile">lib/X3DJSAIL.4.0.full.jar</classpath>
                 <source-level>1.8</source-level>
             </compilation-unit>
         </java-data>